ABS plastic compositions containing halogenated aryl flame retardants

ABSTRACT

Plastic compositions containing acrylonitrile-butadiene-styrene and halogenated aryl compounds having the formula   WHEREIN Z is bromine or chlorine, m and m&#39;&#39; are integers having a value of 1-5, i and i&#39;&#39; are integers having a value of 0-2, R is herein defined, M and M&#39;&#39; are each independent and are from the group oxygen, nitrogen or sulfur with the proviso that M and M&#39;&#39; cannot concurrently be oxygen in both cases, and A is chlorine, cyano, nitro, lower alkoxy, lower alkyl, fluorine, dialkylamino, phenyl, halo-phenyl, benzyl, or halo- benzyl.

United States Patent [191 Anderson et al.

1 1 ABS PLASTIC COMPOSITIONS CONTAINING HALOGENATED ARYL FLAME RETARDANTS [75] Inventors: Arnold L. Anderson; Robert J.

Nulph, both of Alma, Mich.

[73] Assignee: Michigan Chemical Corporation, St.

Louis, Mich.

[ Notice: The portion of the term of this patent subsequent to July 16, 1991, has been disclaimed.

[22] Filed: Feb. 8, 1973 [21] Appl. No.: 330,800

Related U.S. Application Data [63] Continuation-impart of Ser. No. 260,240, June 6,

1972, abandoned.

[52] U.S. Cl 260/45.9 R; 260/42; 260/42.22; 260/45.75 R; 260/45.95 [51] Int. Cl. C08f 45/60 [58] Field of Search. 260/45.95 G, 2.5 A], 45.95 C, 260/45.9 R, 613 B, 33.2 R, 45.9 R, DIG. 24;

[561 References Cited UNITED STATES PATENTS 3,385,819 5/1968 Gouinlock 260/45.75 R

[451 *July 1, 1975 3,560,441 2/1971 Schwarcy et a1 260/45.7 R 3,658,634 4/1972 Yanagi et a1 161/403 3,717,609 2/1973 Kutner 260/45.95 G

Primary Examiner-M. J. Welsh Attorney, Agent, or FirmRobert M. Phipps; James J. Mullen; Robert S. Frieman [57] ABSTRACT Plastic compositions containing acrylonitrilebutadiene-styrene and halogenated aryl compounds having the formula 29 Claims, No Drawings 1 ABS PLASTIC COMPOSITIONS CONTAINING I-IALOGENATED ARYL FLAME RETARDANTS This application is a continuation-in-part of copending application Ser. No. 260,240, filed June 6, 1972 and now abandoned. The entire specification of this case, Ser. No 260,240, is to be considered as incorporated herein by reference.

The prior art considered in conjunction with the preparation of this application is as follows: US. Pat. Nos. 2,130,990; 2,186,367; 2,329,033; 3,666,692; 3,686,320; 3,658,634; German Pat. Nos. 1,139,636; German Pat. No. 2,054,522; Japanese Pat. No. (72) 14,500 as cited in Volume 77, Chemical Abstracts, column l53737k (1972); Chemical Abstracts, Volume 13, column 448 Chemical Abstracts, Volume 31, column 7045; and Journal of the Chemical Society, pages 2972-2976 (1963). All of these publications are to be considered as incorporated herein by reference.

cyclopedia 1972-1973, Vol. 49: No. A, October,

1972, pages l0, l4, 16, 17,19,142 and 143 and which publications are in toto incorporated herein by reference.

The need for flame retarding ABS plastics has also been recognized in the art as exemplified by US. Pat. Nos. 3,422,048 and 3,418,263 and Modern Plastics Encyclopedia, ibid, pages 142, 143, 202, 203 and 456-458 and which publications are in toto incorporated herein by reference.

The resultant disadvantages in the utilization of various prior art materials as flame retardants for ABS include, without limitation, factors such as thermal migration, heat instability, light instability, nonbiodegradable, toxicity, discoloration and the large amounts employed in order to be effective. Thus, there is always a demand for a material which will function as a flame retardant in ABS and concurrently will not, by incorporation therein, adversely effect the chemical and/or physical and/or mechanical properties of the resultant ABS plastic composition.

The prior art problem of providing a flame retarded ABS composition having desired chemical, physical 6 Accordingly, one of the main objects of the present invention is to provide ABS plastic compositions which are flame retarded.

Another object of the present invention is to provide a material for ABS plastic compositions which will not substantially adversely effect the chemical and/or physical and/or mechanical properties of said compositions.

A further object of the present invention is to provide a flame retardant which is economic and easy to incorporate into ABS plastics without being degraded or decomposed as a result of blending or processing operations.

It has been found that the foregoing objects can be obtained by the incorporation of a new class of halogenated aryl compounds in ABS to subsequently provide flame retarded compositions which exhibit outstanding chemical, physical and mechanical properties.

The halogenated aryl compounds used in the present invention compositions have the formula:

In Formula I above, Z is bromine or chlorine, m and m are integers each independently having a value of l-5; i and i are integers each independently having a value of 0-2; M and M are each independent and are from the group oxygen, nitrogen and sulfur with the proviso that M and M cannot concurrently be oxygen in both cases and where M and/or M is nitrogen, the

formula is A is from the group chlorine, cyano (CN), nitro (NO lower alkoxy (e.g. OCH OC H lower alkyl (e.g. CH C l-l C H C 11 fluorine, dialkylhalo-phenyl, benzyl (cl-l C l-l and halo-benzyl;

and R is from the group (a) alkylene: branched or straight or halo-branched chain group having from one to six carbon atoms 3,892,710 3 4 (f) C}-{ C(()) CI-I It is to be understood that all of the compounds fall- (g) ing within the above Formula I and as heretofore defined are generically described herein as halogenated aryl compounds. CH CH 5 g] The halogenated aryl compounds arefound to be compatible with and effective additives for various (h) polymeric systems .to make the resultant polymer flame l retardant.

Z 2 Illustrative (but without limitation) of some of the present invention halogenated aryl compounds are where S saturated ring shown below:

the exemplary definitions of A, Z, M, M, R, m, m, i In Formula l, i m or i m is not greater than 5. 25 and a e sted in Table I,

Table 1 Compound No. Z m m A 1 R M M 1 Br 1 l 0 0 C l-l S S 2 Br 1 3 0 0 C 11,, -,S O 3 Br 2 2 Cl 1 l C ll I O N 4 Br 2 2 CN 1 l C H N N 5 Br 2 2 N0 1 1 C H O N 6 Cl 2 2 OCH l 1 C I-L, S S 7 Br 3 3 OCH,-, 1 l C H S O 8 Br 2 2 CH 1 1 C 11,, N N 9 Br 2 2 1 l C l-l S S 10 Br 2 2 N(CH 1 1 C 11, N N 11 Br 2 2 C H 5 1 l C H N S 12 Cl 2 2 -C H Br l l C H N Sv 13 Br 2 2 CH C l-l 1 l C l-l I S S 14 Br 2 2 CH C 1-l Br l 1 C 11, N N 15 Cl 3 3 C H Cll l C H N I N 16 Br 3 3 l 1 C l-1, N 0 1? Br 2 l N(CH l 0 H,, N S l8 Br 2 3 -N(CH 1 0 C ll N O 19 Cl 3 3 c l-l Br l l C l-l S S 20 Br 3 3 Cl 2 2 H S N 21 Br 2 2 Cl 1 l CH(CH )CH N N 22 Br 4 4 Cl 1 l CH(CH )CH CH S O 23 Br 3 3 F 2 2 CH CH(CH )CH CH O N 24 Br 1 l C H l 1 CH N N 25 Br 1 l -OC ,H,, 1 1 C 11, N O 26 Br 3 3 0 0 CH C(CH Cl)l-l N N 27 Br 3 3 O 0 CH C(CH Cl) S S 28 Br 5 5 0 0 CH C(CH Cl)H S N 29 Br 2 2 CN 1 1 CH CH C(CH Br)H S v O 30 Br 2 2 NO 1 1 CH (CHCl )H O N 3| Cl 2 2 OCH;, 1 l CH C(CH CI)H N N 32 Br 3 3 OCH;; 1 1 (CH C(CH C1) 0 N 33 Br 2 2 CH 1 l CH C(CH Cl)H S S 34 Br 2 2 l l CH C(CH Cl) S O 35 Br 2 2 N(CH-,)-, 1 1 CH C(CHBr )H N 'N 36 Br 2 2 -c,n, l 1 (CH C(CBr )H S S 37 C1 2 2 C l-l Br 1 1 CH C(CH Cl)l-l N N 38 Br 2 2 -CH C H 1 l CH C(CCl N S 39 Br 2 2 CHgCsHaBfg 1 l CH C(CH Cl)H S N 40 Cl 3 3 6 Cl 1 1 CH C(CH Cl)H S S 41 Br 3 3 1 1 CH C(CCl.-;)2 N N 42 Cl 5 5. 0 0 CH C(CH Cl)H N O 43 Br 4 4 0 0 CH C(CH Cl)H N S 44 Br 3 3 -C H Br l 1 (CH C(Cl-l Cl) O N 45 Br 3 3 0 0 CH C(CH Cl)HCl-l S 1 S 46 Br 2 2 O 0 CH C(CCl )l-l N S 47 Br 4 4 0 O CH C(CHBr )l-l N N 48 Br 3 3 F 2 2 CH C(CH Cl)l-l O S 49 Br 1 l C ,H 1 1 CH C(CH Cl)H N O 50 Br 1 1 OCH H 1 l (C 2).-;C(CH Cl)1-l N N 51 Br 2 2 0 0 CH CH(OH )CH S S 52 Br 3 3 0 O CH CH(OH)CH N N 53 Cl 2 2 O O CH CH(Ol-l)Cl-l S N Table I Continued Compound N- Z in m A i j R M M1 216 c1 3 3 F 1 1 11 C C112 N N 217 Cl 2 2 --CN 2 2 H C CH N o 218 Br 4 4 o o H. ,C CH, N s

219 C1 3 3 C.,H. .Br,, 1 1 H C CH 0 N 220 c1 3 3 NO. 2 2 H C cu, s s

221 C1 2 2 OCH 1 1 1-1,c CH 5 N 222 c1 4 4 -01, 1 1 H2C CH N N 223 C] 3 3 F 2 2 H2C CH2 0 S 224 Br 1 1 c,H 1 1 H C CH 225 Br 1 1 -0c,1-1, 1 1 11 C c1-1 N In general, the halogenated aryl compounds are pre- A A pared by reacting a halogenated phenol, thiophenol or aryl amine with a halogenated alkane at elevated temperatures in the presence of a basic material such as al- 7 kali metal hydroxides, carbonates, bicarbonates, oxides m O 1 OH A R "'Tl'l and hydrides. The preferred alkali metals are potassium and sodium. Where one desires to increase, for exam- A1 1 ple, ease of handling the reaction mass, solvents such as ketones (e.g. acetone, methyl ethyl ketone, and methyl iso-butyl ketone), alcohols (e.g. methanol, eth- O ORX SH anol, iso-propyl alcohol, butyl alcohol and glycols), aqueous solvents (e.g. water, a mixture of water and al- A v Ai' cohol and a mixture of water and ketone), and polar aprotic solvents such as dimethylformamide (DMF), Z R S dimethyl sulfoxide (DMSO) and ethers such as tetrahym O 7 0 OJ drofuran (THF), can be employed. The desired end 7 product 1.e. the halogenated aryl compound, can be re- 40 In t above reaction, X and R are the Same as me covered from the reaction mass via various methods such as distillation or crystallization. Where the end product requires recovery via crystallization, various aromatic solvents such as benzene, toluene, xylene, dichlorobenzene and the like can be used.

Specifically, the symmetrical halogenated aryl compounds are prepared, for example, according to the following reactions:

base z-z SH X (III) Ai iI In the above reaction, X is halogen, preferably chlorine and R is the same as defined herein. Where m and m and i and i are different integers, then equivalent molar portions of the particular halogenated phenol, thiophenol or aryl amine are used with equivalent portions of dissimilar halogenated phenol, thiophenol or aryl amine. I

The unsymmetrical halogenated aryl compounds are prepared, for example, according to the following reactions:

tioned above.

The above reactions are conducted at temperatures ranging from the freezing point of the initial reaction mass to the boiling point thereof. Preferably the temperatures are from about 40 to about 200 C and more preferably from about 50 to about C. It is to be understood that the reaction can be conducted under sub-atmospheric (e.g. 1/10-8/10 atmospheres), atmospheric or super-atmospheric (e.g. l.5-10 atmospheres) pressure. Preferably, the reaction is carried out at atmospheric pressure.

The above-described processes can be carried out with conventional, readily available chemical processing equipment. For example, a conventional glass-lined vessel provided with heat transfer means, a reflux condenser and a mechanical stirrer can be advantageously utilized in practicing any of the preferred embodiments of the invention described in the examples set forth herein. The above described processes and resultant products, i.e., the halogenated aryl compounds, are more fully described in the present applicants copending patent application Ser. No. 330,838 filed Feb. 8, 1973 and which is incorporated herein by reference.

The amount of halogenated aryl compound employed in the present invention compositions is any quantity which will effectively render the acrylonitrilebutadiene-styrene containing composition flame retardant. In general, the amount used is from about 1 to 25% by weight, based on the total weight of the composition. Preferablv. the amount emoloved is from about to about by weight. lt is to be understood that any amount can be used as long as it does not substantially adversely effect the chemical and/or physical and/or mechanical properties of the end polymer composition. The amount utilized, however, is such amount which achieves the objectives described herein.

It is to be understood that the term ABS as used herein means acrylonitrile-butadiene-styrene. copolymers which are thermoplastic polymers produced, for example (but without limitation), by blending a styrene/acrylonitrile copolymer with butadiene-based rubber, or by grafting butadiene-based rubber (usually polybutadiene) with styrene/acrylonitrile chains, or by copolymerization of styrene, acrylonitrile and butadiene monomers.

Thus the acrylonitrile-butadiene-styrene used in the present invention compositions is any acrylonitrilebutadiene-styrene herein defined and which one so desires to flame retard. It is to be understood that the acrylonitrile-butadiene-styrene used can be a virgin material, i.e. substantially free of additives such as stabilizaerogel, wet process silica); silicates (asbestos, kaolimite,'mica, nepheline syeni't'e, talc, woll'astonite, alumi num silicate and calcium silicate); and inorganic compounds such as barium ferrite, barium sulfate, molybtion compositions. Thus, the amount used can be zero (0) percent, based on the total weight of the composition, up to that percent at which the composition can still be classified as a plastic. In general, such amount will be from about 0 to about 75% and specifically from about 1 to about 50%.

ers, plasticizers, dyes, pigments, fillers, and the like, or

the acrylonitrile-butadiene-styrene can have additives (such as those mentioned and described herein) already contained therein or added concurrently with or after the addition of the halogenated aryl compounds. Another facet of the present invention relates to the use of certain metal compounds with the halogenated aryl compounds to promote a cooperative effect therebetween and thus enhance the flame retardancy of the resultant plastic composition as compared to the flame retardancy of either one component used separately. These enhancing agents" are from the group antimony, arsenic, bismuth, tin and zinc-containing compounds. Without limitation, examples of said enhancing agents include Sb O SbCl SbBr Sbl SbOCl, As O AS205, ZnBO BaB O .H O, 2.ZnO.3B- O .3.5- H 0 and stannous oxide hydrate. The preferred enhancing agent is antimony trioxide.

The amount of enhancing agent employed in the present invention compositions is any amount which when used with said halogenated aryl compounds will promote a cooperative effect therebetween. in general, the amount employed is from about lto about 15%, preferably from about 2 to about 10%, by weight, based on the total weight of plastic composition. Higher amounts can be used as long as the desired end result is achieved. It is also within the scope of the present invention to employ other materials in the present invention compositions where one so desires to achieve a particular end result. Such materials include, without limitation, adhesion promotors; antioxidants; antistatic agents; antimicrobials; colorants; flame retardants such as those listed on pages 456458, Modern Plastics Encyclopedia, ibid, (in addition to the new class of flame retardants described herein); heat stabilizers; light stabilizers; pigments; plasticizers; preservatives; ultraviolet stabilizers and fillers.

In this latter category, i.e. fillers, there can bementioned without limitation, materials such as glass; carbon; cellulosic fillers (wood flour, cork and shell flour); calcium carbonate (chalk, limestone, and precipitated calcium carbonate); metal flakes; metallic oxides-(aluminum, beryllium oxide and magnesia); metallic powders (aluminum, bronze, lead, stainless steel and zinc); polymers (comminuted polymers and elastomer-plastic blends); silica products (diatomaceous earth, novaculite, quartz, sand, tripoli, fumed colloidal silica, silica The halogenated aryl compounds can be incorporated into the acrylonitrile butadiene styrene at any processing stage in order to prepare the present invention compositions. In ge ne r al, .th is is undertaken prior to fabrication either by. p ysical blending or during-the process of forming acrylon tr le-butadiene styreneper se. .Where one so desires the halogenated arylcompounds may be micronized into. finelydividecl particles prior to incorporation intothe gcrylonitrile-butadienestyrene. I

. EXAMPLEZI,

An ABS plastic material, (Marbon-TP-2098, a product of Marbon Division, 'Borg-Warner Corporation, Washington, West Virginia lancl made in the manner disclosed and claimed in US. Pat. No. 3,238,275 issued on Mar. 1, 1966 and containing antioxidants, lubricants, releasing agents and titanium dioxide pigment) is utilized as the base resin'inorder to prepare26 for mulations (plastic compositions). With the exception of formulation .-No. -l, the particular halogenated' aryl compound (and the antimony trioxide enhancing agent where indicated) is incorporated into the plastic by adding both to a Brabender mixer (Plastic-Corder, Torque Rheometer, Model PLV- ['50, C. W. Brabefider Instruments Inc., South Hackensack'; NJ.) The mixer is equipped with a pair of roller type blades positioned within a head provided with heat transfer means.

The resultant mixture is heated to about 245 C.; at this temperature, it is in a molten state. The percentages by weight of each component utilized in the respective formulations are listed in Table II; Each formulation is discharged from the mixer and upon cooling solidifies and is ground into chips. The chips are subjected to compression molding in a Wabash press by placing said chips between two platens, the bottom of which contains four equal size depressions three inches by 5 inches by A; inch deep. The top platen is then placed over. the bottom platen and heat transfer means supplied thereto in orderto melt said chipsand thus provide solid sampleslaft er cooling) for testing.

Portions of thejsqlirl samples of each respective formulation (Nos. according to the above.

described procedure are then's'ubjected totvvo different standard flammability tests,:i'.e. UL 94 and ASTM D-28 63-70. The UL 94 is. in general, the application of a burner to a test specimen (strip) for a certain period of time and observation of combustion, burning, and extinguishment. This procedure is fully set forth in Underwriters Laboratories bulletin entitled UL 94, Stanfully described in 1971 Annual Book of ASTM Standards Part 27, published by the American Society For Testing and Materials, 1916 Race Street, Philadelphia, Pa.', this publication is to be considered as incorporated (in toto) herein by reference.

The results of these flammability tests are shown in Table 11.

TABLE II 14 7, 9, 11, 13, 15, 17, 19, 21, 23, 25 and 26. The highest UL 94 ratings and significantly higher CI. values (4.5-l8.0% increase) are obtained.

EXAMPLE II Example I is repeated twice; once using a halogenated aryl compound level and 3% Sb- O level and secondly, 20 and 10% levels respectively. At the 10%/3% level, the 0.1. values and UL 94 ratings are slightly lower than the %/5% level of Example I. At the %/10% levels, the 0.]. values and UL 94 ratings are slightly higher but basically the same as those obtained using 15%/5% level.

EXAMPLE III Portions of the solid samples of Formulation Nos.

FLAMMABILITY DATA FOR ABS PLASTIC COMPOSITIONS CONTAINING HALOGENATED ARYL COMPOUNDS OXYGEN UL 94 FORMULATION HALOGENATED ARYL ENHANCING AGENT COMPOUND INDEX l. 0 0 18.5 SB

2. l 15 0 19.0 SB

3. 1 l5 5 23.0 SB

4. 2 l5 0 205 SB 5. 2 15 5 32.0 SE-O 6. 3 l5 0 21.0 SB

7. 3 l5 5 34.0 SE-O 9. 4 l5 5 33.0 SE-O 10. 32 15 0 23.5 SB 1 l. 32 15 5 35.0 SEC 12. 37 15 0 20.5 SB 13. 37 15 5 28.5 SB-l 14. 65 15 O 21.0 SB 15. 65 15 5 27.5 58-1 16. 79 15 O 21.5 SB 17. 79 15 5 28.0 SB-l 18. 122 15 0 21.0 SB 19. 122 15 5 27.0 58-1 20. 143 15 O 24.0 SB 21. 143 15 5 36.5 SE-O 22. 159 I5 0 21.0 SB 23. 159 15 5 28.0 SE-O 24. 181 15 0 20.5 SB 25. 181 15 5 27.0 SE-l 26. 205 15 5 34.0 SE-O Referring to Table II, the halogenated aryl compound number relates to the structural formulae heretofor set forth in Table I; a difference of 2% in the Oxygen Index values is considered significant; and the UL 94 values are on a graduated scale wherein the highest degree to lowest degree of the flame retardancy is respectively SE-O, SE-l, SE-Z, SB and Burns.

The results shown in Table II demonstrate the unique effectiveness of these halogenated aryl compounds as flame retardants for ABS. Specifically, formulation No. l (thecontrol) had a 0.1. of 18.5 and UL 94 value of SB. In Nos. 2, 4, 6, 8, l0, l2, l4, l6, 18, 2O, 22 and 24, the use of the particular halogenated aryl compound results in a significant increase (OS-5.0%) in fire retardancy as measured by 0.]. (While these formulations also had a SB rating, UL 94, the individual U L rating has a wide range of values and thus the 0.1. number is, in this case, more indicative of increased flame retardancy).

The use of an enhancing agent such as Sb O to promote a cooperative effect between such agent and the halogenated aryl compound is fully demonstrated via the results obtained from testing formulation Nos. 3, 5,

l-26 prepared according to the above described procedure of Example I are subjected to the following ASTM tests in order to ascertain other properties of the resultant plastic composition:

l. Tensile Strength (at break) ASTM Test No. D638- order to ascertain the efficacy of a polymeric system as an overall flame retarded composition for commercial application. All of these ASTM Tests are to be considered as incorporated herein by reference.

The results of these ASTM tests show that the physi- 6 cal properties of the present invention compositions are basically the same (except 0.]. and UL 94 values) as the plastic material without the flame retardant (i.e. formulation No. 1). Thus, there is no substantial adverse efect on the physical properties of the plastic material when the novel compounds are incorporated therein.

EXAMPLE IV The procedure of Examples 1 and III are repeated except that the enhancing agent used is zinc borate instead of Sb O Substantially the same results are obtained using zinc borate as those obtained using Sb O EXAMPLE V Strip samples of each of Formulation Nos. 1 through EXAMPLE VI Samples of each of Formulation Nos. 1 through 26 Table II, are subjected to temperature (thermal) stability tests via the use of thermal gravimetric analysis (TGA). This test employed the use of a Thermal Balance, model TGS-l, Perkin-Elmer Corporation, Norwalk, Connecticut and an electrical balance, Cahn 2580 model, Cahn Instrument Company, Paramount, California. The results of these tests show that the halogenated aryl compounds containing Formulations had more than adequate stability for melt processing and subsequent heat aging (i.e. high temperature applications) and thus demonstrating that the particular halogenated aryl compounds are quite compatible with the plastic material. The halogenated aryl compound stability thus aids in providing sufficient flame retardancy at the plastic decomposition temperature. This test also demonstrates that these compounds do not exhibit migration.

In view of the foregoing Examples and remarks, it is seen that the plastic compositions, which incorporate these compounds, possess characteristics which have been unobtainable in the prior art. Thus, the use of these compounds in the above described plastic material as flame retardants therefor is quite unique since it is not possible to predict the effectiveness and functionality of any particular material in any polymer system until it is actively undergone incorporation therein and the resultant plastic composition tested according to various ASTM Standards. Furthermore, it is necessary, in order to have commercial utility, that the resultant flame retarded plastic composition possess characteristics such as being non-toxic. Use of these compounds in the plastic material has accomplished all of these objectives.

The above examples have been described in the foregoing specification for the purpose of illustration and not limitation. Many other modifications and ramifications will naturally suggest themselves to those skilled in the art based on this disclosure. These are intended to be comprehended as within the scope of this invention.

What is claimed is:

1. A plastic composition containing acrylonitrilebutadiene-styrene polymer having incorporated therein a flame retardant which is a halogenated aryl compound having the formula:

wherein Z is selected from the group consisting of bromine or chlorine; m and m are integers having a value of l-5; i and i are integers having a value of 0-2; M

and M are each independent and are selected from the group consisting of oxygen, nitrogen or sulfur with the proviso that M and M cannot concurrently be oxygen in both cases and where M and/or M is nitrogen, the formula is A is selected from the group consisting of chlorine, cyano, nitro, lower alkoxy, lower alkyl, fluorine, dialkylamino, phenyl, halo-phenyl, benzyl, or halobenzyl; and R is selected from the group consisting of (a) alkylene group having from one to six carbon atoms (b) CH CI-I(Ol-I)CH (c) CH -Cl-l(CI-l OH)CH 2)u" O 2)uwhere w l-6 where X H, Cl, Br

n 4 (f) Cl-I- C(O)-- CH (g) CH CH where S saturated ring A A l Z S-RS n c11 ca where X H, Cl, Br n 4 2"- (O)- 2 (g) CH where S saturated ring 6. The composition as set forth in claim 5 wherein i and i are both 0.

7. The composition as set forth in claim 5 wherein i and i are both 1.

8. The composition as set forth in claim 5 wherein i and i are both 2.

9. The composition as set forth in claim 6 wherein R is an alkylene group having from 1 to 6 carbon atoms.

10. A plastic composition containing acrylonitrilebutadiene-styrene polymer having incorporated therein a flame retardant which is a halogenated aryl compound having the formula: 1

A1 Ail wherein Z is selected from the group consisting of bromine or chlorine; m and m are integers having a value of 1-5; i and i are integers having a value of 0-2; A is selected from the group consisting of chlorine, cyano, nitro, lower alkoxy, lower alkyl, fluorine, dialkylamino, phenyl, halo-phenyl, benzyl, or halobenzyl; and R is selected from the group consisting of (a) alkylene group having from one to six carbon atoms (b) CH CH(OH)-CH (c) CH CH(CH OH)CH 2)w 2)ir where w l-6 CH2 CH2 where X H, Cl, Br n 4 CH H where S saturated ring 11. The composition as set forth in claim 10 wherein i and i' are both 0.

12. The composition as set forth in claim 10 wherein i and i are both l.

13. The composition as set forth in claim 10 wherein i and i are both 2.

14. The composition as set forth in claim 11 wherein R is an alkylene group having from 1 to 6 carbon atoms.

15. A plastic composition containing acrylonitrilebutadiene-styrene polymer having incorporated therein a flame retardant which is a halogenated aryl compound having the formula:

A1 A1 I 19 20 Where where S saturated ring I X H, Cl, Br 21. The composition as set forth in c aim 20'wherein 4 1 i and l" are both 0. (f) CH C(O)CH 22. The composition as set forth in claim 20 wherein (g) I CH CH 5 iand i are both 1.

2 23. The composition as set forth in claim'20 wherein i and i are both 2. V

24. The composition as set forth in claim 21 wherein R is an alkylene group having l,to 6 carbon atoms.

( C CH 10 25. A plastic composition containing acrylonitrile- 2 2 butadiene-styrene polymer having incorporated therein a flame retardant which is a halogenated aryl comwhere S Saturated ring pound having the formula: 16. The composition as set forth in claim wherein i i and i are both 0. 15

17. The composition as set forth in claim 15 wherein i and i are both 1.

18. The composition as set forth in claim 15 wherein Zm s R o i and i are both 2. A Y I 19. The composition as set forth in claim 16 wherein 2Q s R is an alkylene group having from 1 to 6 Carbon wherein Zis bromine'br chlorine, man'd mare integers atoms having a value of' l-5'; i and i -are" integerslhavin ga 20. A plastic composition containing acrylomtnlevalue of A is Chlorine cyanoini-tro lower 'x butadienestyrene polymer having incorporated therein lower alkyl, fluorine dialkylamihlofphenyl, halo a flame retardant which is a halogenated my! phenyl, benzyl, or halobenz'yl;and'4R is selected from pound having the formula: the group consisting v q I A1 (a) alkylene group having from one to'six carbon atoms (b) CH CH(OH)-CH 1 (c) CH CH(CH OH)CH I CH2 ..-O(CH.).- Z -R--0 I wherew=l6 wherein Z is bromine or chlorine, m and m are integers CH having a value of 1-5; i and i' are integers having a 2 2 value of 0-2; A is chlorine, cyano, nitro, lower alkoxy,

lower alkyl, fluorine, dialkylamino, phenyl, halowherfi 1 phenyl, benzyl, or halobenzyl; and R is selected from Br a l; the group consisting of (a) alkylene group having from one to siX carbon atoms 40 E CH2 C(O) CH2 (b) CH CH(OHCH g 2 CH (c CH CH(CH OH)CH 2)u' 2)uwherein w l-6 CH2 0 CH2 1 where S saturated ring where 26. The composition as set forth in'claim 25 wherein X H, Cl, Br i and i are both 0. r n 4 27.-The composition as set forth inclaim 25 wherein (f) GH C(O)-CH i and i are both 1. CH CH 28. The composition as 'set forth in claim 25 wherein 2 iand i arevboth 2. I Y E95 29. The composition as set forth in claim 26 wherein R is an alkylene group having l to6 carbon atoms.

llC"CH A UNITED STATES PATENT OFFICE CERTIFICATE OF CORRECTION PATENT NO. 3,892,710

DATED July 1, 1975 INVENTOR(S) Arnold L. Anderson and Robert J. Nulph It is certified that error appears in the above-identified patent'and that said Letters Patent are hereby corrected as shown below:

Claim 10, column 17, line 65, (being the first structural formula of said claim) delete the formula as shown and substitute therefore the following:

A I-II H z N .R .i

Claim 15, column 18, line 50, (being the first structural formula of said claim) delete the formula as shown and substitute therefore the following: A A.,

H N I O R S {A t (continued on page 2) Page 2 of 2 UNITED STATES PATENT OFFICE CERTIFICATE OF CORRECTION PATENT NO. 3,892,710

DATED July 1, 1975 INVENTOR(S) Arnold L. Anderson and Robert J. Nulph' It is certified that error appears in the above-identified patent and that said Letters Patent are hereby corrected as shown below:

Claim 20, column 19, line 30, (being the first structural formula of said claim) delete the formula as shown and substitute the following:

Saigncd and ,ficaled this seventh Day of 0czober1975 [SEAL] AIIESI.

RUTH C. MASON C. MARSHALL DANN Arresting Officer Commissioner oj'Patents and Trademarks 

1. A PLASTIC COMPOSITION CONTAINING ACRYLONITRILE-BUTADIENESTYRENE POLYMER HAVING INCORPORATED THEREIN A FLAME RETARDANT WHICH IS A HALOGENATED ARYL COMPOUND HAVING THE FORMULA:
 2. The composition as set forth in claim 1 wherein i and i'' are both
 0. 3. The composition as set forth in claim 1 wherein i and i'' are both
 1. 4. The composition as set forth in claim 1 wherein i and i'' are both
 2. 5. A plastic composition containing acrylonitrile-butadiene-styrene polymer having incorporated therein a flame retardant which is a halogenated aryl compound having the formula:
 6. The composition as set forth in claim 5 wherein i and i'' are both
 0. 7. The composition as set forth in claim 5 wherein i and i'' are both
 1. 8. The composition as set forth in claim 5 wherein i and i'' are both
 2. 9. The composition as set forth in claim 6 wherein R is an alkylene group having from 1 to 6 carbon atoms.
 10. A plastic composition containing acrylonitrile-butadiene-styrene polymer having incorporated therein a flame retardant which is a halogenated aryl compound having the formula:
 11. The composition as set forth in claim 10 wherein i and i'' are both
 0. 12. The composition as set forth in claim 10 wherein i and i'' are both
 1. 13. The composition as set forth in claim 10 wherein i and i'' are both
 2. 14. The composition as set forth in claim 11 wherein R is an alkylene group having from 1 to 6 carbon atoms.
 15. A plastic composition containing acrylonitrile-butadiene-styrene polymer having incorporated therein a flame retardant which is a halogenated aryl compound having the formula:
 16. The composition as set forth in claim 15 wherein i and i'' are both
 0. 17. The composition as set forth in claim 15 wherein i and i'' are both
 1. 18. The composition as set forth in claim 15 wherein i and i'' are both
 2. 19. The composition as set forth in claim 16 wherein R is an alkylene group having from 1 to 6 carbon atoms.
 20. A plastic composition containing acrylonitrile-butadiene-styrene polymer having incorporated therein a flame retardant which is a halogenated aryl compound having the formula:
 21. The composition as set forth in claim 20 wherein i and i'' are both
 0. 22. The composition as set forth in claim 20 wherein i and i'' are both
 1. 23. The composition as set forth in claim 20 wherein i and i'' are both
 2. 24. The composition as set forth in claim 21 wherein R is an alkylene group having 1 to 6 carbon atoms.
 25. A plastic composition containing acrylonitrile-butadiene-styrene polymer having incorporated therein a flame retardant which is a halogenated aryl compound having the formula:
 26. The composition as set forth in claim 25 wherein i and i'' are both
 0. 27. The composition as set forth in claim 25 wherein i and i'' are both
 1. 28. The composition as set forth in claim 25 wherein i and i'' are both
 2. 29. The composition as set forth in claim 26 wherein R is an alkylene group having 1 to 6 carbon atoms. 